LT3686HDD#PBF

LINEAR TECHNOLOGY  LT3686HDD#PBF  直流-直流开关降压逐步递减稳压器, 可调, 3.6V-37V输入, 800mV-34.04V输出, 1.2A输出, DFN-10

The is a current-mode PWM step-down DC-to-DC Converter with an internal 1.2A power switch. The wide input range of 3.6 to 37V makes the LT3686 suitable for regulating power from a wide variety of sources and including 24V industrial supplies. Its high maximum frequency allows the use of tiny inductors and capacitors, resulting in a very small solution. Operating frequency above the AM band avoids interfering with radio reception. Cycle-by-cycle current limit and DA current sense provide protection against fault conditions. Soft-start and frequency foldback eliminate input current surge during start-up. An optional internal regulated active load at the output via the BD pin keeps the LT3686 at full switching frequency at light loads, resulting in low, predictable output ripple above the audio and AM bands. Internal compensation and an internal boost diode reduce external component count.

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Constant switching frequency at light loads

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Tracking and soft-start

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Precision UVLO

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Short-circuit robust

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Internally compensated

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Overvoltage lockout protects circuit through 55V transients

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16VIN to 3.3VOUT at 2MHz Low minimum on-time

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<1µA Quiescent current in shutdown